document.write( "Question 605834: Hello...! I was hoping that you could tell me the diameter of a circle that contains 32 square miles...? Thanks...! :) ~Donny \n" ); document.write( "

Algebra.Com's Answer #381822 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
If $\"+A+\"$ is the area of the circle,
\n" ); document.write( "you are given that
\n" ); document.write( " $\"+A+=+32+\"$ miles2
\n" ); document.write( "The formula for the area of a circle is
\n" ); document.write( " $\"+A+=+pi%2Ar%5E2+\"$ so,
\n" ); document.write( " $\"+32+=+pi%2Ar%5E2+\"$
\n" ); document.write( " $\"+r%5E2+=+32%2Fpi+\"$
\n" ); document.write( " $\"+r+=+sqrt%28+32%2Fpi+%29+\"$
\n" ); document.write( " $\"+r+=+sqrt%28+10.1859+%29+\"$
\n" ); document.write( " $\"+r+=+3.1915+\"$
\n" ); document.write( "The diameter is twice the radius, so
\n" ); document.write( "diameter is $\"+2%2A3.1915+=+6.3831+\"$ miles
\n" ); document.write( " \n" ); document.write( "

\n" );